Carriage-shifting mechanism for type-writing machines.



APPLICATION FlLED FEB. I, WIS.

Patented Oct. 10, 1916.

2 SHEETS-SHEET I.

Chimney,

H. J. METZ.

CARRIAGE SHIFTING MECHANISM FOR TYPE WRITING MACHINES.

APPLICATION HLED FEB 11, 1916. V 1,201,213. Patented 011.10,1916.

2 SHEETSSHEET 21 Z 3 I d $1 /vibneoe UNITED @FFXQE sass-a seannrnnssn'rrrms"ivrncnamsivr- FQR TYPE WRIT-ING Ii/EACHIHES.'-

This invention relates to the subject of typewriting machines, and more particum lal ly toian attachment for typewriting mayc hin es lby means of which the carriage thereof maylbefreadily shifted and spaced thrqugh the medinm. of foot operated mechtemplates in its general jadle, mechanism that may r dispose eneath the stand of a ype 1t; ng;niaehine n position to be readily actuated by, th'e-footof the Operator of the itipgmaehine, the invention being of ture;that; ,the,same can be readilybeing provided with thesame may be connected d t-go tlie'floor, the connection being of a. fleXible.natureto echanisni be bodily "'itions relative to the practical embodiment of lfifihownin the accompanying a s, a v ew in front elevation of .:she-w iiattachecl} te, .a typewriting machine, the tygpewriting machine and its stand being indicated by dotted lines. Fig. 2 is a detail new-nan.efatae creadle mechanism. Fig. 3 is a sectional view taken substantially on a line 33 Fig. Fig. 4; isan-enlarged transverse sectional viewashowing the manner of:

adjustably connecting the two members of the supporting standard. Fig. 5 is a sec tional view taken substantially on line 5-5, Fig. 2. Fig. 6 is a detail fragmentary sectional view taken substantially on the line 6 5, Fig. 2. Fig. 7 is a detail perspective view showing the manner of fiexibly connesting the supporting standard to the stand of the typewriting machine.

The improved carriage shifting mecha nism, in its preferred embodiment, comprises a base support 1 which may be equipped with penings 2 for the reception of floor engaging spurs or the like to normally prethe improved carriage shifting mechanismv vent slipping of saidbasesupport. Adjacent one end portion the support 1 has an upstanding supporting post 3 riveted or otherwise'rigidly attached thereto, said post 3 having a treadle levers.- pivoted to its upper end, the rear end of said lever being provided with a treadle 5. i The base support 1 at its forward end terminates in a bracket arm 6 that is disposed in a plane higher than said support 1, and'has a pulley 7 pivoted thereto. I

Adjacent the bracket arm. \3 the base support 1 may be provided with'slots 8 adapted for selective engagement bythe end hook 9 at the lower end of-the lower section 10 of a supporting standard designated in its entirety by the numeral "11'; The standard 11 is preferably composed oftwo sections the upper one being designated by the numeral 12, and the lower'one the numeral 10 as aforesaid. The standard 11 is preferabiy formed of sheet metal that is shaped to I permit the sections 10 and 12 to have sliding interlocking engagement as indicated in .so screw designated by the numeral 13, being employed to lock the section in the desired j Section 12 at one edge portion is provided with a laterally pro5 1" .jectedear H, and its upper end is prefer Fig. 4 of the accompanying drawings, a set adjusted position.

ably rolled as indicated-at 15 for pivotal eng'agement with the pintle 16, carried by the rounded rear end of a flat strap 17, the strap being formed of a single piece of material that is folded on itself and provided with openings 18 'for the reception of suitable fastenings-for attaching the said strap. to the undersiirface of the, top of a stand 19.

It will be observedfrom the foregoing description that the described manner of attaching the standard 11" to the stand 19 is in effect a pivotal connection between the standard and stand which permits the treadle mechanism including the standard to be shifted relatively to said stand.

A spring 20 connects the forward end of treadle 4 with the ear 14 of standard 11 to maintain a tension on a carriage cable '25, to be referred to.

The typewriting machine has hem d nated generally by the numeral 21 1 end of the upper portion of its fn equipped with a laterally projecting bras 22 terminating in an n standing p'i to which a pulley 24 is pivotelly con.

to the desired .shape, and quicklyassembled in operative position, although it is to be The cable 25 passes over pulleys 7 and 24, the lower end of the cable being connected to the forward end of lever 4 and the upper to the left of the frame of the machine and the forward end of the treadle 'lever 4 is depressed. To shift the carriage to the opposite portion of the frame, the treadle 5 is depressed by the operator, causing the forward end of lever 4 to rise and thereby exert apull on cable that shifts the carriage from the left to the right position relative to the frame of thetypewriting machine, and at the same time, by operating hook 26, eflect the necessary or desired line spacing.

:-.; .It is preferred that the base 1, post 3,

treadleand treadle lever 4, standard 11, and bracket 22 be formed from sheet metal, as the same can be readily stamped or punched understood that the invention is not neces sarily restricted to the use of sheet metal.

From the foregoing description it will be apparent that this invention is one that can be used in connection with any. form of typewriting machine, and that through the use of the adjustable standard 11, the same may be adjusted vertically in' accordance with the heights of the top of the stand used, and that through the use of the described hinge connection 17, the treadle mechanism may be shifted laterally relatively to the stand.

I claim as my invention 1. A carriage shifting and spacing mechanism for typewriting machines comprising a floor engaging support provided with cable-guiding means, a treadle carried by the support, an adjustable standard carried by the support and provided with means for pivotally engaging1 a typewritingmachine stand, a carriage s ifting and spacing cable operated by the treadle and engaging the cable guiding means, and a spring connection between the treadle and the standard. 2. A carriage shifting mechanism for typewriting machines comprising a support having an outwardly projecting elevated bracket arm at one end, a pulley carried by the arm, a treadle carried by the support, a standard carried by the support, means for pivotally connecting the standard to a typewriting machine stand, a bracket carried by the frame of a typewriting machine, a pulley carried by the bracket, and a cable engaging the pulley and having its ends attached to the spacing mechanism of the carriage of a typewriting machine and to the treadle for shifting and spacing the carriage, respectively.

3. A carriage shifting and spacing mechanism for type-writing machines comprising a fiat base having one end shaped to form an outwardly projecting elevated bracket, a cable guide carried by the bracket, 21 treadle pivotally connected to the base, a carriage shifting cable attached to the treadle and engaging the guide, a standengaging standard carried by the base, and a spring connection between the "treadle and standard.

4. A carriage shifting mechanism for typewriting machines comprising a support having an elevated bracket arm at one end, a pulley carried by the arm, a treadle carried by the support, a standard carried by the support, means for pivotally connecting the standard to a typewriting machine stand, a bracket carried by the frame of a typewriting machine, a pulley carried by the bracket, and a cable engaging the pulley and having its ends attached to the spacing mechanism of the carriage of a typewriting machine and to the treadle ,for shifting and spacing the carriage respectively.

In testimony whereof I have afiixed my signature in presence of two witnesses.

HUDSON J. METZ. Witnesses.

JosE RoBINsoN, RAoUL DEETJEN. 

